| 电容层析成像技术应用于冰水两相测试研究 |
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| 引用本文： | 姜凡,刘靖,刘石,梁世强,王雪瑶.电容层析成像技术应用于冰水两相测试研究[J].中国电机工程学报,2010(5). |
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| 作者姓名： | 姜凡 刘靖 刘石 梁世强 王雪瑶 |
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| 作者单位： | 中国科学院先进能源动力重点实验室(工程热物理研究所);河南理工大学土木学院;华北电力大学能源与动力工程学院;中国科学院工程热物理研究所; |
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| 基金项目： | 国家自然科学基金项目(40501017,50706053)~~ |
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| 摘 要： | 采用电容层析成像(electrical capacitance tomography,ECT)方法研究冰水两相系统中冰在水中的运动和冰锋面的移动等。研究过程中,先采用传统的闭合电极电容层析成像传感器,即电极布置于被测管道某一截面的外侧一周,得到被测截面的冰-水分布,以及冰在水中的运动轨迹。之后,为研究冰锋面的迁移情况,针对测试件的特殊结构设计了新型非闭合电极电容层析成像传感器,即沿容器高度上布置了几组电极,每组电极两两相对。当冰锋面浸没过某一对电极时,该对电极电容值迅速减小,因此采用这种布置方式可以获得冰锋面的运动。采用电容层析成像这种非接触测量方式可以获得冰在水中的移动及冻结情况,为进一步研究冻土中的复杂现象提供新型测试手段。
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| 关 键 词： | 电容层析成像 冰水分界面 两相流 冻土 |
Measurement of Ice-water Two Phase Using Electrical Capacitance Tomography |
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| JIANG Fan,LIU Jing,LIU Shi,LIANG Shi-qiang,WANG Xue-yao ,Chinese Academy of Sciences,Haidian District,Beijing ,China,.School of Civil Engineering,Henan Polytechnic University,Jiaozuo ,Henan Province,.School of Energy , Power Engineering,North China Electric Power University,Changping District,Beijing.Measurement of Ice-water Two Phase Using Electrical Capacitance Tomography[J].Proceedings of the CSEE,2010(5). |
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| Authors: | JIANG Fan LIU Jing LIU Shi LIANG Shi-qiang WANG Xue-yao Chinese Academy of Sciences Haidian District Beijing China School of Civil Engineering Henan Polytechnic University Jiaozuo Henan Province School of Energy Power Engineering North China Electric Power University Changping District Beijing |
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| Affiliation: | JIANG Fan1,LIU Jing2,LIU Shi3,LIANG Shi-qiang4,WANG Xue-yao1 (1.Key Laboratory of Advanced Energy , Power(Institute of Engineering Thermophysics),Chinese Academy of Sciences,Haidian District,Beijing 100190,China,2.School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan Province,3.School of Energy , Power Engineering,North China Electric Power University,Changping District,Beijing 102206,4.Institute of Engineering Thermophysics,Haidian Distric... |
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| Abstract: | Electrical capacitance tomography (ECT) was introduced to investigate the movement of ice in water and the freezing front movement in ice-water two phase system.First,the traditional closed electrode sensors were put into use.In this arrangement,the electrodes were attached to the outside of the pipe or vessel,and the cross-sectional distribution of ice and water could be reconstructed from the capacitances measured.Also,the ice moving track at the cross section could be reflected thoroughly.Since the tradi... |
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| Keywords: | electrical capacitance tomography ice-water interface two-phase flow frozen soil |
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